# A151530 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 7
5 14
6 31
7 63
8 141
9 297
10 649
11 1391
12 3026
13 6539
14 14187
15 30619
16 66172
17 142667
18 307883
19 663506
20 1429816
21 3077752
22 6622351